The difference is what size the glitter particle has been cut. Standard glitter powder size is .008″ hex, were as glitter dust size is .004″ hex or smaller. Glitter is made by finely cutting sheets of plastic or metallic foils into minute pieces. These tiny flecks of plastic or foil reflect light brilliantly as it shines off of myriad surfaces. Most glitter websites would refer glitter dust as extra fine glitter powder. Glitties Carries over 14 different glitter dust/ extra fine glitters and over 70 different glitter powder colors. Glitter dust is used in many different ways to create nail art. Glitter dust/powders can be mixed in acrylics, gels, and is used for Glitties DIY Glitter Toes Kits. Our solvent resistant extra fine glitter powders can be placed directly into nail polish. Our franken customers use the solvent resistant extra fine glitter powders as pigments or fillers for their franken polish creations. Address:- 210 W 520 N St, Orem, UT 84057 Phone:- 801-695-7007 http://www.glitties.com/glitter-dust.html http://shop.glitties.com/black-glitter-c34.aspx